Fix ERC721URIStorage in documentation

contracts/token/ERC721/README.adoc

@@ -39,7 +39,7 @@ NOTE: This core set of contracts is designed to be unopinionated, allowing devel
 
 {{ERC721Burnable}}
 
-{{ERC721TokenUri}}
+{{ERC721URIStorage}}
 
 == Presets
 

contracts/token/ERC721/extensions/ERC721URIStorage.sol

@@ -5,7 +5,7 @@ pragma solidity ^0.8.0;
 import "../ERC721.sol";
 
 /**
- * @dev ERC721 token with storage based token uri management.
+ * @dev ERC721 token with storage based token URI management.
  */
 abstract contract ERC721URIStorage is ERC721 {
     using Strings for uint256;